How do I get Iphone apps on 1.1.1?

Im still using Jailbroken 1.1.1. Is this bad and should I upgrade to 1.1.3 and is there any further benefits in doing so? I tried repo.us.to and it says that the site is down. How do I get iphone apps?

Also, I really liked the NOTES app when I had it on my previous ipod touch. What name is it listed under in INSTALLER?